Changeset 90 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Boot

Timestamp:

Jan 27, 2011, 11:31:31 AM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• Removed INT 13h format and diagnostics functions.
• Removed INT 18h callback handler.
• Removed configuration for early/late initialization. Now XT builds always use late and AT build early initialization.
• Reduced number of supported IDE controllers from 5 to 4.
• Removed reserved configuration bytes.
• Removed simple and system boot loaders.

File:

• trunk/XTIDE_Universal_BIOS/Src/Boot/BootVars.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Src/Boot/BootVars.asm

@@ -1 @@
-; File name     :   BootVars.asm
-; Project name  :   IDE BIOS
-; Created date  :   1.4.2010
-; Last update   :   14.1.2011
-; Author        :   Tomi Tilli,
-;               :   Krister Nordvall (optimizations)
+; Project name  :   XTIDE Universal BIOS
 ; Description   :   Functions to access BOOTVARS struct.
 
@@ -77 +72 @@
     sti                                 ; Enable interrupts
     jmp     ax
-
-
-;--------------------------------------------------------------------
-; Backups system INT 18h ROM Boot / Boot Failure handler and
-; installs our own for boot menu INT 18h callbacks.
-;
-; BootVars_StoreSystemInt18hAndInstallOurs
-;   Parameters:
-;       DS:     BDA and Interrupt Vector segment (zero)
-;   Returns:
-;       Nothing
-;   Corrupts registers:
-;       AX, BX, ES
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootVars_StoreSystemInt18hAndInstallOurs:
-    mov     bx, INTV_BOOT_FAILURE*4     ; Offset to INT 18h vector
-    les     ax, [bx]                    ; Load system INT 18h
-    mov     [BOOTVARS.dwSys18h], ax
-    mov     [BOOTVARS.dwSys18h+2], es
-    mov     WORD [bx], Int18h_BootError ; Install our INT 18h
-    mov     WORD [bx+2], cs
-    ret
-
-
-;--------------------------------------------------------------------
-; Restores system INT 18h ROM Boot or Boot Error handler.
-;
-; BootVars_RestoreSystemInt18h
-;   Parameters:
-;       Nothing
-;   Returns:
-;       Nothing
-;   Corrupts registers:
-;       AX, DS, ES
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootVars_RestoreSystemInt18h:
-    LOAD_BDA_SEGMENT_TO ds, ax
-    les     ax, [BOOTVARS.dwSys18h]
-    mov     [INTV_BOOT_FAILURE*4], ax
-    mov     [INTV_BOOT_FAILURE*4+2], es
-    ret